Epsilon provided environmental inspection and restoration monitoring services required by the Variance Order of Conditions.  An Epsilon staff member served as the environmental monitor throughout the construction phase of the project, conducting weekly site inspections to verify the performance of erosion control measures, oversee construction within wetland areas, and document site activity.  Monthly inspection status reports were submitted to DEP summarizing site activity and conditions, erosion or sedimentation problems, remedial actions taken, and recommendations for improvement.

Mitigation for the project was provided through the Hatches Harbor Salt Marsh Restoration Project, managed by the National Park Service.  The restoration project involves restoring 60 to 90 acres of salt marsh habitat over a period of ten years through the controlled opening of newly installed culverts in the Hatches Harbor dike.  The proposed restoration altered the hydrology of the area, thereby potentially creating additional wetlands along the wetland edge.  Epsilon completed baseline monitoring in December 2001 and monitored changes in vegetation and hydrology for a period of five years.  At the end of each year, a detailed report was provided to DEP describing observations and changes along the wetland edge during the year.  In early 2006, DEP issued a “Certificate of Compliance” to the Airport Commission.